Fair Value (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	$ 52,393	$ 53,285	$ 84,208
Due from banks, interest-bearing	148,734	213,426	159,527
Federal funds sold	467	557	752
Securities available for sale	247,140	165,614	172,319
Total debt securities	148,485	154,610	170,804
Total loans, net of allowance	2,512,705	2,490,343	2,359,403
Accrued interest receivable	8,986	9,166	8,744
FDIC Indemnification Asset.	6,704	8,439	18,452
Bank-owned life insurance	72,594	72,086	55,793
Accrued interest payable	554	585	$ 619
Level 1 [Member] \| Carrying Amount [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	52,393	53,285
Due from banks, interest-bearing	148,734	213,426
Federal funds sold	467	557
Presold mortgages in process of settlement	3,102	4,323
Accrued interest receivable	8,986	9,166
Bank-owned life insurance	72,594	72,086
Level 1 [Member] \| Fair Value [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	52,393	53,285
Due from banks, interest-bearing	148,734	213,426
Federal funds sold	467	557
Presold mortgages in process of settlement	3,102	4,323
Accrued interest receivable	8,986	9,166
Bank-owned life insurance	72,594	72,086
Level 2 [Member] \| Carrying Amount [Member]
Carrying amounts and estimated fair values of financial instruments:
Securities available for sale	247,140	165,614
Total debt securities	148,485	154,610
Deposits	2,826,821	2,811,285
Borrowings	186,394	186,394
Accrued interest payable	554	585
Level 2 [Member] \| Fair Value [Member]
Carrying amounts and estimated fair values of financial instruments:
Securities available for sale	247,140	165,614
Total debt securities	151,684	157,146
Deposits	2,825,909	2,809,828
Borrowings	178,864	178,468
Accrued interest payable	554	585
Level 3 [Member] \| Carrying Amount [Member]
Carrying amounts and estimated fair values of financial instruments:
Total loans, net of allowance	2,512,705	2,490,343
FDIC Indemnification Asset.	6,704	8,439
Level 3 [Member] \| Fair Value [Member]
Carrying amounts and estimated fair values of financial instruments:
Total loans, net of allowance	2,493,507	2,484,059
FDIC Indemnification Asset.	$ 6,609	$ 8,256

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Carrying amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses.

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The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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For banks and other depository institutions (including Federal Reserve Banks, if applicable): Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums over and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans and leases covered under loss sharing agreements.

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